UK Prime Minister Keir Starmer and other European leaders used a security summit in London to demonstrate broad support for Ukraine. Starmer, his Italian counterpart Giorgia Meloni and French President Emmanuel Macron, as well as other leaders, spent the weekend in a diplomatic whirlwind as they tried to fix the disastrous clash at the White House between US President Donald Trump and Ukrainian President Volodymyr Zelenskiy. Bloomberg’s Oliver Crook reports. (Source: Bloomberg)